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Author Question: The first factories that appeared in Great Britain in 1740 concentrated on the production of steel. ... (Read 25 times) |
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Medication errors are three times higher among children and infants than with adults.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.